E-Mail IMAGE: The laser constructed by the team of Dr. Stepanenki can be tuned in a similar way to tuning the radio to catch your favorite station. Only with femtosecond precision. PhD... view more Credit: IPC PAS/Grzegorz Krzyzewski Would you like to capture a chemical transformation inside a cell live? Or maybe revolutionize microchips' production by printing paths in a layer that has a thickness of just 100 nanometers? These and many other goals can now be achieved with the latest femtosecond laser created by a team of scientists led by Dr. Yuriy Stepanenko. These days, there is a multitude of laser light sources. They each have their characteristics and different applications, such as observing stars, treating illnesses, and surface micro-machining. "Our goal is to develop new ones," says Yuriy Stepanenko, head of the team of Ultrafast Laser Techniques at the Institute of Physical Chemistry of the Polish Academy of Sciences. "We deal with sources that produce ultrashort pulses of light. Really very, very short - femtosecond pulses (that's a part of a second with 15 zeros after the decimal point). This is the scale on which, for example, intracellular chemical reactions take place. To see them, we have to "take a photo" in this very short time. And thanks to the new laser, we can do just that.